4n-40=-4n+20

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Solution for 4n-40=-4n+20 equation: 



4n-40=-4n+20

We move all terms to the left:

4n-40-(-4n+20)=0

We get rid of parentheses

4n+4n-20-40=0

We add all the numbers together, and all the variables

8n-60=0

We move all terms containing n to the left, all other terms to the right

8n=60

n=60/8

n=7+1/2

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